What is CVE-2025-40579?

CVE-2025-40579 is a medium-severity vulnerability in Siemens Scalance Lpe9403, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2025-05-13.

How severe is CVE-2025-40579?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Siemens Scalance Lpe9403

CVE-2025-40579

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices are vulnerable to a stack-based buffer overflow. This could allow a non-privileged local attacker to execute arbitrar…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (16.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Siemens Scalance Lpe9403 — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

cert-portal.siemens.com/productcert/html/ssa-327438.html

Frequently asked questions

What is CVE-2025-40579?: CVE-2025-40579 is a medium-severity vulnerability in Siemens Scalance Lpe9403, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2025-05-13.
How severe is CVE-2025-40579?: Medium severity. CVSS v3 base score is 6.7 out of 10.